of the Legend and Integra, Acura introduced the NSX, a midship V6 powered, rear-wheel-drive sports car. The NSX, an acronym for "New Sports eXperimental", was billed as the first Japanese car capable of competing with Ferrari and Porsche. This vehicle served as a halo car for the Acura brand. The NSX was the world's first all-aluminum production car, and was also marketed and viewed by some as the "Everyday Supercar" thanks in part to its ease of use, quality and reliability, traits that were unheard of in the supercar segment at the time. The success of the Japanese automakers contributed to their American counterparts falling into a recession in the late 1970s. Unions and lobbyists in both North America and Europe put pressure on their government to restrict imports. In 1981, Japan agreed to Voluntary Export Restraints in order to preempt protectionism measures that the US may have taken, where it be tariffs or import quotas. Consequently, Japanese companies responded by investing heavily in US production facilities, as they were not subject to the VER. Unlike the plants of domestic automakers, Japanese plants are non-unionized (save for NUMMI), so they have lower wage expenses and do not face the risk of strikes. The VER was lifted in 1994 upon agreement of all members of General Agreement on Tariffs and Trade (GATT). Establishing US production facilities was also a significant step in improving public relations, along with philanthropy, lobbying efforts, and sharing technology. Europe has still largely maintained its protectionism policies against Japanese cars, though theirs varies considerably. Toyota has always been by far Japan's largest automaker, and it recently overtook perennial world leader GM in both production and sales by early 2008. As the most aggressive of Japan's companies when it came to expanding into light trucks and luxury vehicles, this proved largely successful. Their high-end brand Lexus became the top-selling luxury marque worldwide in 2000, despite being only started up in 1989. Consequently, Toyota's stock price has traded at a much higher premium than other automakers. Nissan regained its position on second place, financial difficulties in the late 1990s caused it to lose its place to Honda before. Nissan is Japan’s second largest automaker and ranks sixth in the world, behind Toyota, GM, Volkswagen, Ford, and Hyundai. Suzuki, Mazda, and Mitsubishi are in a distant fourth, fifth, and sixth place compared to the Japanese Big Three. Toyota, Honda, and